/*
 * Copyright 2006 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.user.client.rpc.core.java.util;

import java.util.Date;

import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.rpc.CustomFieldSerializer;
import com.google.gwt.user.client.rpc.SerializationException;
import com.google.gwt.user.client.rpc.SerializationStreamReader;
import com.google.gwt.user.client.rpc.SerializationStreamWriter;

/**
 * Custom field serializer for {@link java.util.Date}.
 */
public final class Date_CustomFieldSerializer extends
		CustomFieldSerializer<Date> {
	/**
	 * @param streamReader
	 *            a SerializationStreamReader instance
	 * @param instance
	 *            the instance to be deserialized
	 */
	public static void deserialize(SerializationStreamReader streamReader,
			Date instance) {
		// No fields
	}

	public static Date instantiate(SerializationStreamReader streamReader)
			throws SerializationException {
		return new Date(streamReader.readLong());
	}

	public static void serialize(SerializationStreamWriter streamWriter,
			Date instance) throws SerializationException {
		if(GWT.isClient()){
			streamWriter.writeLong(instance.getTime());
		}
	}

	@Override
	public void serializeConstructor(SerializationStreamWriter streamWriter,
			Date instance) throws SerializationException {
		streamWriter.writeLong(instance.getTime());
	}

	@Override
	public void deserializeInstance(SerializationStreamReader streamReader,
			Date instance) throws SerializationException {
		deserialize(streamReader, instance);
	}

	@Override
	public boolean hasCustomInstantiateInstance() {
		return true;
	}

	@Override
	public Date instantiateInstance(SerializationStreamReader streamReader)
			throws SerializationException {
		return instantiate(streamReader);
	}

	@Override
	public void serializeInstance(SerializationStreamWriter streamWriter,
			Date instance) throws SerializationException {
		serialize(streamWriter, instance);
	}
}
